Aparently Impact Soundworks Shreddage 2 is now available.  $119.00 USD.
 
There is a thread on KVR about it.
 
I'm on the fence.  was thinking of buying Shreddage1 but am now leaning toward 8Dio Songwriter Guitar and eventually Vir2 Elect6city.
 
If someone gets Shreddage 2 post what ya think.  I'd be interesting in hearing a review.